Mix flour, milk, butter, eggs and a pinch of salt (optional) in a bowl until well mixed.
Pour mixture over a sieve into another bowl to get a fine and smooth batter.
Pour batter onto a lightly greased non-stick frying pan and swirl it around to get a very thin layer. Cook over a low fire until pancake solidifies.
Repeat Step 3 until all the batter is finished.
Add cold whipping cream and sugar into a bowl, then whip on high speed until it reaches stiff peaks.
Peel and mash 400g of durian pulp, approximately 8-10 pieces depending on the size.
Add mashed durian pulp into whipped cream mixture and mix gently.
Take a tablespoon of durian whipped cream and place onto the center of a pancake, then fold all sides into the middle, forming it into a small, puffed pillow.
Repeat Step 8 until all durian whipped cream is finished, then chill before serving.